Depends on what system we are talking about emulating. Bleemcast beta that was released, which Striker 1945 runs on was only 30% completed before the company went on a game by game basis for emulating PS1 games. This is why Gran Turismo 2, Metal Gear Solid and Tekken 3 all require boot discs even to this day.
Somebody just managed to hack the beta code so we could play self booting PS1 backups on a Dreamcast.
Again, if you are talking PS1 emulation, it is pretty much touch and go, but some very rare games to work full speed, even though some things may remain glitched for instance, like the Beta has no save or FMV support like the retail Bleem! boot discs do.
Your best bet would be looking at the Bleemcast compatibility list to see whats supported.
http://www.whipassgaming.com/genesisrev ... bility.htm
Hundreds of PS1 games do work fine on Dreamcast, but again, saves and FMV's make playing many games like RPG's totally pointless, but are fine or quick arcade like games like Shmups.
I reckon if Strikers 1999 uses the same engine 1945 1 and 2 do, then your chances of playing that game are highly likely.